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set iostat_period_ms to 1 sec

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Current period of this is 3 sec and it is used when Perfetto profiling is running on Android. Without Perfetto profiling, it doesn't affect the system at all. However, 3 sec doesn't provide enough granularity to understand F2FS I/O behaviors. To make F2FS I/O profiling ftrace effective, set the ftrace period to 1 sec.

Test: check f2fs iostat_period_ms sysfs node value
Change-Id: I2d418795613dfbd1aea6c4f13c9a39af3deb1c4d
Signed-off-by: Daeho Jeong <daehojeong@google.com>
This commit is contained in:
Daeho Jeong 2022-11-29 21:04:12 +00:00
parent f9e6c5104d
commit 2accf5bd79
1 changed files with 1 additions and 0 deletions
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rootdir/init.rc
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@ -1108,6 +1108,7 @@ on boot
# are not aware of using fsync()/sync() to prepare sudden power-cut.
write /dev/sys/fs/by-name/userdata/cp_interval 200
write /dev/sys/fs/by-name/userdata/gc_urgent_sleep_time 50
write /dev/sys/fs/by-name/userdata/iostat_period_ms 1000
write /dev/sys/fs/by-name/userdata/iostat_enable 1
# set readahead multiplier for POSIX_FADV_SEQUENTIAL files